Q. The increase in pressure in a vane blower takes place first due to compression and then due to back flow of air.

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Q. The maximum delivery pressure in a rotary air compressor is

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Q. The capacity of a compressor is expressed in

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Q. The increase in pressure in a roots blower is entirely due to back flow of air.

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Q. The type of rotary compressor used in aeroplanes, is of

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Q. An axial compressor gives optimum performance at high speeds and large volume flows.

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Q. In a reciprocating air compressor, the compression work per kg of air

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Q. The degree of reaction in an axial flow compressor is defined as the ratio of static enthalpy rise in the

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Q. In axial flow compressor, exit flow angle deviation from the blade angle is a function of

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Q. Rotary compressors are used for delivering

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Q. Workdone by a two-stage reciprocating air compressor per cycle is equal to the workdone in LP. cylinder and H.P. cylinder.

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Q. A rotary compressor is driven by an

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Q. In a centrifugal compressor, an increase in speed at a given pressure ratio causes

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Q. A large clearance Volume in a reciprocating compressor results in

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Q. A closed cycle gas turbine gives __________ efficiency as compared to an open cycle gas turbine.

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Q. Gas turbine as compared to steam turbine

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Q. Intercooling in gas turbines

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Q. When the temperature of air leaving the intercooler, in a two stage compression with intercooler, is __________ the original atmospheric air temperature, then the intercooling is known as perfect or complete intercooling.

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Q. Free air is the air at atmospheric conditions at any specific location.

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Q. A gas turbine used in air-craft should have low weight and small frontal area.

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